we have uploded multiple documents. i want to faclitate free user to download one of file.
If Free User want to download another file then i want to show message "Register now for download this file "
If User will complete the registration from then he can download multiple files.
I uploaded my site , is there any way that any one can't access my files that I uploaded on host?
I mean I want know is there any way that I put some code or password in my pages that any one can't change or open it?
suppose i have four hyper link in my page if user click on any hyper link then a file will be downloading in client machine. if user click on 4 links one after one then 4 file will be downloading in client machine. so i want that if user click first time on any link then a file will be downloading and if user click on second link when first file is downloading then i want to show a message to user that already one file is downloading from your IP and stop second file download. when first file download will be completed if then user click on second or any other link then another file will download in client pc. when file is downloading in client pc then we have no control over it and ever we not being able to know when download complete. so it is getting hard for me to implement by code.
i think from my question anyone can understand what i want that at a time one user can download one file at a time and will be able to download next file when first file has been downloaded in client pc.in this way i can restric the user to download large files more than one at a time. how to implement this with code in asp.net.
i need a code for my web app where i want to restrict a user after...let say 10 visits....on the 11 th time when the user tries to login he/she gets a error messege denying login.maybe we can use session or cookies...but i dont want to limit..it with cookies i.e if he tries to enter after 30 days or so he is allow to login. what i raelly want is, a user has only 10 views after that he is unauthorized to login.
View 3 Repliesi have 4 pages of website 2 pages are authorized to used by USER and 2 pages are restricted for useradmin can authorized to go all 4 pagesi need coding for Login window from which Admin/User Login
View 1 RepliesI want to secure a particular set of files in a folder by role type. I have the following entry (See below)...I notice this doesn't work (I.e., it doesn't secure the file by Role Type.. anyone can access the file). I've read that I need to map the .WMV extension to the ASp.Net DLL.
[Code]....
Can anyone explain how to make unique login in asp.net
<b>Problem:</b> If user is logged at a client machine and tries to login from other client machine at the same time, then he should be prompted that "You are already logged in, Do you want to continue?" on continue user should be logged out from other machine and logged in to current machine.
I gave an option to user to change password but the text boxes are taking - / @ (special characters). How to check at runtime that user may not enter these characters?
View 21 RepliesIn my website, if one user registered from a computer, we have to allow that user to be able to access the site from that computer only. If he try to login from another system even in LAN, we have to deny the access.
View 5 RepliesI am using FileUpload control to facilitate Image file upload on my website. I want to restrict a user to upload only Image file. I am using
if (fupFirmLogo.PostedFile.ContentType == "image/Jpeg")
{
}
to check if the file is a image or not. I want to allow all image extensions like PNG, GiF, Jpeg, tif , BMP etc. How should I do it.
I want to limit the allowed uploaded file types to images, pdfs, and docs. What is the recommended way to approach this?I assume checking the file extension alone is not enough, since an attacked can change the file extension as he wishes.I also thought about checking against MIME Type using PostedFile.ContentType.I still don't know if this is adding any further functionality than checking against file extensions alone, and if an attacker have and ability to change this information easily.This is basically for a course management system for students to upload assignments and teachers to download and view them.
View 2 RepliesI have a file upload control in which i want to restricr the users not to upload more than 1mb file. Is it possible using custom validator or any other code. I want to raise validation before any postback happends.
View 2 RepliesIn our application, we allow user to upload documents which can be PDF, Doc, XLS, TXT. Uploaded documents will be saved on web server. We need to display link for each document user uploaded and when user click on that link, it should open relevant document. it is expected to have required software to open relevant documents.
To upload document, we use saveAs method of FileUpload control and it works absolutely fine.Now, how to view it?I believe, i need to copy/download file to local user machine and need to open it using Process.Start.For that i need to find user local temp directory. if i put path.GetTempPath(), it gives me web server directory and copy file there.
File.Copy(
sPath + dataReader["url"].ToString(),
Path.GetTempPath() + dataReader["url"].ToString(),
true);
I want to allow my user to click on a button that says "download" and then will build a dynamic csv file on the fly and will prompt the user to download. I know how to build the file using a HTTPHandler, but not quite sure the mechanism for delivering the content via download.
View 2 RepliesI want to create a .doc-file in my code behind and let the user download it somehow. How can this be done in the simplest way without saving the file at the server? I heard MemoryStream can be used but I'm not exactly sure how.
View 1 RepliesI am completely stuck here. Basically, I am serving a file to the user by sending it using Respnse.BinaryWrite. I am also sending this on a redirected page so as not to destroy the Response stream of the webpage which fired the filedownload. This works perfect on my development machine, it also works perfect on Firefox.However, if I publish to my test server, on IE 8 (and 7 I presume) a security warning bar appears (does not appear in dev mode on my pc), asking the user to accept or decline the file. Now the not-so-funny thing: If the user accepts, the file is NOT served, I just get back to my main webpage. If the user tries a second time to get the file the security question will NOT pop up again and the file is served.How can I make sure the file is served in the first instance if the user accepts the security warning and wants to download?
Code used:
HttpContext.Current.Response.Clear()
HttpContext.Current.Response.AppendHeader("Content-Disposition", String.Format("attachment; filename={0}", Session("FileName")))
HttpContext.Current.Response.AppendHeader("Content-Length", myReportData.Length.ToString())
HttpContext.Current.Response.ContentType = "application/pdf"
HttpContext.Current.Response.BinaryWrite(myReportData.ToArray)
HttpContext.Current.Response.Flush()
HttpContext.Current.Response.End()
I'm running into an issue where in IE the security dialog is popping up and if I click download File the file is never downloaded..it just goes back to the main page.
View 3 RepliesI have very similar problem as this: Allowing users to download files - ASP.NET , but in my case I am generating xlsx file with ajax, and on ajax-called aspx page I am using:
[code]....
When this file is generated, control is returned to ajax calling page and from there I wan't to show save file dialog based on this ajax response and allow user to download this generated file. I don't want to save file on disk with ajax called page and then redirect ajax calling page to that file, because of popup blocker in IE. I am using jquery for ajax calls:
[code]....
I've developed a C# Windows forms application that I want to market. I also have a web site built using aspx.net. I would like to have a customer download my application from my website to their machine and install it or save it. I've never tried this before, but it appears to be standard stuff for downloading anything from a web site.
View 4 RepliesDoes anyone know how this is possible? I can retrieve the file, but I cannot figure out or find anywhere online how to prompt the user where he/she wants to download the file to.
View 2 RepliesI have a gridview that allows the user to export this gridview to excel. Here is my codes but I would like my user to be able to select where to download the file
Protected Sub ExportToExcel(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExport.Click
lblMsg.Visible = True
Try
Dim objSw As New StreamWriter(txtFileName.Text.Trim + ".xls")
'Dim serverFilePath As String = "D:Excel Files"
'Dim fileStream As New FileStream(serverFilePath, FileMode.Open)
'Dim fileSize As Long = fileStream.Length
'Response.ContentType = "application/octet-stream"
'Response.AddHeader("Content-Disposition", "attachment; filename=""" & txtFileName.Text.Trim & """;")
'Dim fileBuffer As Byte() = New Byte(fileSize - 1) {}
'fileStream.Read(fileBuffer, 0, CInt(fileSize))
'Response.BinaryWrite(fileBuffer)
'fileStream.Close()
'Response.[End]()
Dim objDt As DataTable = DirectCast(Session("Data"), DataTable).Copy()
'Get No Of Column in GridView
Dim NoOfColumn As Integer = objDt.Columns.Count...........................
i am doing a page to sell files online
the paying method is by a card or bank account and the customer is not registered to the site so i want to make sure that the customer has downloaded the file successfully after that the system completes the payment operation.
i was just wondering how one would approach creating a link that would be active for 24 hours for a user... ie i have in the db a time of confirmation and then wanted to make a download active for them for 24 hours and deactivate it post then.
View 1 RepliesI am a newbie of asp.net.
The environment is .net 3.5 and C#.
There are files stored in sql server (datatype of column is varbinary in the database).
each record is in one record in that table (FILE_TABLE).
And there is another table (PATH_TABLE) to store the files paths.
for example,
when the user download the folder A (select an item on the tree and click a button on the client side),
there is one sub-folder B and two files A-1 and A-2.
in folder B, there is two files B-1 and B-2.
then, at the code behind (server), the server will get the files from the database and convert them (including the files and subfolders) to a .zip file (or other compressed files)
and then write a response (using the method HttpResponse.BinaryWrite(Byte[] xxx) )
to client side and let the user download.
after the download, the user can extract the compressed file and the structure of the folders and files keep unchanged.
I have a webpage that allows a user to download a specified file. When the file is ready to be fully downloaded (i.e I call the HttpResponse.End or HTTPRepone.Flush) the user is presented with a File Download dialogue.
Is there any way to determine what option the user has selected?
Have they Opened, Saved or Cancelled the File Download once the Flush or End has been sent?